Twins, separate sacs, same placenta..

Julie • 💖Twin Mommy💖 Camdin & Caiden 🌎💙
So after seeing my co-doctor today he is saying thankfully my babies have TWO sacs but ONE placenta. But he is saying this means identical. My first set of twins were fraternal. Any other ladies experiencing this? 8w5d. ❤️❤️